J. Assmann - Ingenieur

A rare Glashuette deck watch Movm. No. 20484, Case No. 20484, Dimensions 60 mm, circa 1912, Weight 151 g, Origin Deutschland Case: Silver, case design "Lucia". Dial: Enamel. Movm.: Bridge movement, club-tooth lever escapement, gold screw compensation balance. The "Ingenieur" series was identical in construction to the J. Assmann naval deck watch with bridge movement but was aimed at the civil market. These precision timepieces were used in many research facilities and industrial businesses for exact timekeeping during scientific and industrial processes. Institutions such as the Königliches Astrophysikalisches Observatorium (Royal astrophysical observatory) and the Königliches Geodätisches Institut (Royal geodesic institute) in Potsdam possessed several of these B watches. The bridge movement used in this model is a custom-made series of ebauches produced by Swiss company LeCoultre & Cie. Which was delivered on order to J. Assmann after 1902. The ebauches received extensive finishing and fine adjustment in Glashuette, so that they certifiably adhered to the the Glashuette standard, which is still valid today. Source: glashuetteuhren.de Case: very good, slightly worn. Dial: very good. Movm.: very good, capable of running, cleaning recommended.